The current storyline has the Emperor turning the Inquisitors over to Vader and basically they are are hunting down the remaining Jedi. Something Snoke said in TFA feels like this may be where he met/ knew Vader from. Also, they are hunting Jocasta Nu and while she knows her end is near, she’s compiling all her knowledge for future generations of Jedi to have in the hopes it will be used in a Jedi school.